This game uses sound effects very well. The footsteps are cute but not overbearing, and the ladder sound is a nice touch. I was able to progress down the pipe twice, but afterwards, the little guy would just say "I'm still hungry", and I would get stuck. On reloading the page, I was not able to progress down the pipe anymore.
Viewing post in How I Ate The World jam comments
Yup, sorry for that, you're supposed to eat 3 creatures each round, then you can go down the pipe, if the alien says I'm still hungry, this means, he's not ready to go down the pipe. I missed a line of code and now the controls get blocked no matter how much food you've eaten, but if that's less than 3, you won't be able to progress :D